如何在
Windows上检测鼠标点击? (XP / Vista / 7的).
@H_404_2@例如,当我的应用程序运行时,它将检测用户是否点击某些东西(不是在该应用程序UI上,而是在Windows UI上).如果是,执行另一个进程.
我不知道这是否可能,我希望有人可以给我一些指导.
谢谢!
解决方法
如果要拦截任何鼠标点击,移动,鼠标滚轮点击等,您需要编写一个鼠标钩.
如果您想在自己的应用程序之外跟踪鼠标活动,这是AFAIK的唯一方法.如果要安装挂钩,则需要从User32.dll文件导入SetWindowsHookEx(…)函数.它涉及到interop(PInvoke),你必须导入(DllImport)一些功能.
这是Microsoft的官方文档,关于如何在C#中实现这一点:
How to set a Windows hook in Visual C# .NET
我会在这里总结一下,只是为了完成一个连接死亡的答案.
从SetWindowsHookEx函数开始:
[DllImport("user32.dll",CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook,HookProc lpfn,IntPtr hInstance,int threadId);
现在你可以设置你的钩子例如:
public class Form1 { static int hHook = 0; public delegate int HookProc(int nCode,IntPtr wParam,IntPtr lParam); HookProc MouseHookProcedure; private void ActivateMouseHook_Click(object sender,System.EventArgs e) { if(hHook == 0) { MouseHookProcedure = new HookProc(Form1.MouseHookProc); hHook = SetWindowsHookEx(WH_MOUSE,MouseHookProcedure,(IntPtr) 0,AppDomain.GetCurrentThreadId()); } } }
不要忘了解开它.您将需要另一个DllImport:
[DllImport("user32.dll",CallingConvention=CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook); private void DeactivateMouseHook_Click(object sender,System.EventArgs e) { bool ret = UnhookWindowsHookEx(hHook); }
您可以使用HookProc代理(MouseHookProcedure)捕获鼠标活动.这涉及到一些编组以捕获数据.
[StructLayout(LayoutKind.Sequential)] public class POINT { public int x; public int y; } [StructLayout(LayoutKind.Sequential)] public class MouseHookStruct { public POINT pt; public int hwnd; public int wHitTestCode; public int dwExtraInfo; } public static int MouseHookProc(int nCode,IntPtr lParam) { MouseHookStruct MyMouseHookStruct = (MouseHookStruct) Marshal.PtrToStructure(lParam,typeof(MouseHookStruct)); // You can get the coördinates using the MyMouseHookStruct. // ... return CallNextHookEx(hHook,nCode,wParam,lParam); }
别忘了调用钩链中的下一个项目(CallNextHookEx)!
[DllImport("user32.dll",CallingConvention=CallingConvention.StdCall)] public static extern int CallNextHookEx(int idHook,int nCode,IntPtr lParam);
PS:你可以对键盘做同样的事情.